Rear trailer signal light



FIG. 1 is a top perspective view of the first embodiment of my rear trailer signal light, with the broken line showing for illustrative purposes only and forming no part of the claimed design;

FIG. 2 is a top plan view of the signal light of FIG. 1;

FIG. 3 is a front elevational view of the signal light of FIG. 1, the left side being identical;

FIG. 4 is a rear elevational view of the signal light of FIG. 1, the right side being identical;

FIG. 5 is a top rear perspective view of the second embodiment of my rear trailer signal light;

FIG. 6 is a front elevational view of the signal light of FIG. 5, the left side being identical; and,

FIG. 7 is a top plan view of the signal light of FIG. 5. 

The ornamental design for a rear trailer signal light, as shown and described. 